Screen is covered with lines with large black spots and border
My mac screen is almost completely covered with vertical lines white screen and black spots with black borders. It started off with vertical lines, few days later a large black spot showed up then I noticed the top of the screen was turning black almost like it was leaking black ink. If I take a screen shot the ugly screen doesn't show up in the image. On top of that my computer will not work unless its plugged in. What do I do?